WO2007097363A1 - tricot stereoscopique - Google Patents

tricot stereoscopique Download PDF

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Publication number
WO2007097363A1
WO2007097363A1 PCT/JP2007/053191 JP2007053191W WO2007097363A1 WO 2007097363 A1 WO2007097363 A1 WO 2007097363A1 JP 2007053191 W JP2007053191 W JP 2007053191W WO 2007097363 A1 WO2007097363 A1 WO 2007097363A1
Authority
WO
WIPO (PCT)
Prior art keywords
knitted fabric
dimensional
dimensional knitted
yarn
compression
Prior art date
Application number
PCT/JP2007/053191
Other languages
English (en)
Japanese (ja)
Inventor
Hideo Ikenaga
Yukihito Taniguchi
Original Assignee
Asahi Kasei Fibers Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Kasei Fibers Corporation filed Critical Asahi Kasei Fibers Corporation
Priority to EP07714691A priority Critical patent/EP1988197A4/fr
Priority to JP2008501737A priority patent/JP4972080B2/ja
Priority to US12/280,324 priority patent/US20100229606A1/en
Publication of WO2007097363A1 publication Critical patent/WO2007097363A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58—Seat coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/08—Upholstery, mattresses

Definitions

  • the present invention is arranged on a urethane cushion material of a vehicle seat, prevents concentrated load without bottoming when seated, and obtains excellent vibration absorption and stability against left-right shaking. It relates to a solid knitted fabric that can be used.
  • Patent Document 1 has a panel constant that is 10 ONZmm or less in a region of 250N or more when compressed by a compression plate having a diameter of 200mm, and has a panel load constant smaller than the above-mentioned arbitrary region.
  • a constant By having a constant, it is possible to exhibit characteristics that approximate the characteristics of muscles such as the human hips by stretching the cushion layer of the seat structure with a low elongation rate, and it can exhibit high cushioning properties against large load inputs
  • a knitted fabric is disclosed.
  • Patent Document 2 discloses a cushion for a chair such as an automobile seat that has excellent body pressure dispersibility and resilience by regulating the gauge of a three-dimensional knitted fabric, the number of courses, the fineness of a connecting yarn, and a filling index.
  • a three-dimensional knitted sheet is disclosed.
  • Patent Document 1 Japanese Patent Laid-Open No. 2003-342859
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-089959
  • the present invention relates to a three-dimensional knitted fabric that can prevent concentrated load on a seat bone portion without bottoming when seated, and can obtain excellent vibration absorption and stability against left-right swinging.
  • the present invention is a three-dimensional vehicle that can exhibit excellent ride comfort by being inserted between an urethane cushion material and a skin material in a vehicle seat such as an automobile, a railway vehicle, a motorcycle, a wheelchair, and a stroller.
  • the purpose is to provide a knitted fabric.
  • the present inventor has conducted intensive studies on the panel constant, the shear characteristics, the structure of the three-dimensional knitted fabric, and the structure of the fiber material in the evaluation of the compression characteristics of the three-dimensional knitted fabric.
  • the present invention has been completed.
  • the present invention is as follows.
  • a three-dimensional knitted fabric comprising two layers of front and back knitted fabrics and a monofilament connecting yarn that connects the two knitted fabrics, wherein the three-dimensional knitted fabric has a thickness of 5 to 25 mm and a diameter of 100 mm. Used 2.
  • the compression load at the time of 6 mm compression deformation is 100 to 250 N, and the shear stress when the front and back knitted fabrics are shifted by 5 mm in the horizontal direction (the direction along the course row) is 15 to 35 N.
  • the arrangement of one continuous connecting yarn is a combined force of a triangular shape and an oblique shape when viewed from the knitted fabric cross section in the wale row direction, and the ratio of the numbers is 3: 1 to 1 :
  • the three-dimensional knitted fabric of the present invention is arranged on a urethane cushion material of a vehicle seat, and prevents a concentrated load on the seat bone portion without being bottomed when seated and by flexibly wrapping the seat bone portion. it can. In addition, it has excellent vibration absorption at 15 to 40 Hz due to its moderate panel constant hardness. Furthermore, because the shear load on the front and back surfaces is in the appropriate range, it has good stability against left-right swinging, and can be placed on the urethane cushion material of the vehicle seat to achieve excellent ride comfort. .
  • the solid knitted fabric of the present invention does not bottom out when a person is seated, and also uses the elasticity and history loss (hysteresis loss) of the solid knitted fabric to vibrate in the region of 15 to 40 Hz applied to the vehicle seat. For this reason, it is necessary that the compression load at the time of 2.6 mm compression deformation using a compression plate with a diameter of 100 mm is 100 to 250 N, more preferably 120 to 230 N. More preferably, it is 120-200N.
  • the compression load at the time of 2.6 mm compression deformation using a compression plate with a diameter of 100 mm is that the solid knitted fabric is placed on a rigid surface and the solid knitted fabric is 50% of the original thickness with the compression plate with a diameter of 100 mm.
  • the compression curve of the compression recovery curve obtained when releasing the load after compressing to a thickness it is the value of the load (N) when 2.6 mm compressive deformation (see Fig. 1).
  • compression with a diameter of 100mm corresponds to a heel part of the body
  • 2.6mm compression deformation is an appropriate amount that a three-dimensional knitted fabric compresses and deforms when a person sits on top. This is an amount of deformation experimentally derived by the present inventor that can absorb vibration sufficiently without bottoming. If the compression load during this 2.6mm compression deformation is 100N or less, a solid knitted fabric will bottom out or a concentrated load will occur immediately on the seatbone when a heavy person gets on or when a high input load is applied. Is damaged. In addition, the bottom of the three-dimensional knitted fabric increases the panel constant, shifts the resonance frequency when vibration is applied to the high frequency side, and results in poor vibration absorption at 15 to 40 Hz.
  • the three-dimensional knitted fabric of the present invention has a monofilament material, fineness, front and back surfaces used for connecting yarn of the three-dimensional knitted fabric, as shown below, in order to set the compression load at 2.6 mm compressive deformation to 100 to 250N. It is necessary to carefully adjust the three-dimensional knitting design requirements for the connecting angle, the number of connecting yarns per unit area, the three-dimensional knitting thickness, and the heat set temperature when connecting the knitted fabric.
  • fibers such as polytrimethylene terephthalate fiber, polybutylene terephthalate fiber, polyethylene terephthalate fiber, polyamide fiber, polypropylene fiber, polylactic acid fiber, and polyester elastomer fiber are used.
  • Force that can be recovered Surface force of recovery against repeated compression
  • the fineness of the connecting yarn is preferably 250 to 1000 dtex, more preferably 300 to 800 dtex, and still more preferably 350 to 650 dtex.
  • the number of connecting yarns per unit area is preferably 150 to 600 in a 2.54 cm square, more preferably 200 to 500.
  • the connecting angle at which the connecting yarn connects the front and back knitted fabrics is preferably 45 to 80 degrees.
  • the connection angle means an acute angle formed by the ground structure and the connection yarn when the cross section of the three-dimensional knitted fabric is viewed from the knitting end direction.
  • the connecting yarn may have a structure in which looped stitches may be formed in the front and back knitted fabrics, and may be hooked or tucked into the front and back knitted fabrics, but at least two connecting yarns are used.
  • the knitted fabrics on the front and back sides are inclined obliquely in opposite directions and connected in a cross shape (X shape) or truss shape. That's right.
  • both the cross and truss-like connecting yarns may be composed of two connecting yarns.
  • the same connecting yarn may be folded back on the front or back surface to make two apparently. May be.
  • the three-dimensional knitted fabric needs to have a thickness of 5 to 25 mm measured by applying a load of 0.5 g / cm 2 (49 Pa). If the thickness is less than 5mm, it will support the human weight without bottoming out It becomes difficult. If the thickness exceeds 25 mm, the heat-setting processability and cutting property of the three-dimensional knitted fabric will be inferior in handling properties such as lint treatment at the end.
  • the heat setting method is very important in determining the structure and panel constant of the connecting yarn of the three-dimensional knitted fabric.
  • the width should be adjusted according to the material and knitting structure of the three-dimensional knitted fabric. And it is preferable to adjust the heat set temperature in the range of 140-200 ° C! /.
  • the three-dimensional knitted fabric of the present invention needs to have a shear stress of 15 to 35 N when the front and back knitted fabrics of the three-dimensional knitted fabric are shifted in parallel by 5 mm in the horizontal direction (the direction along the course row).
  • a shear stress of 15 to 35 N when the front and back knitted fabrics of the three-dimensional knitted fabric are shifted in parallel by 5 mm in the horizontal direction (the direction along the course row).
  • it is 15-30N, More preferably, it is 20-30N. If the shear stress is less than 15N, there is no sense of stability against horizontal shaking, and if the shear stress exceeds 35N, which tends to bottom out, a plate feeling that is too hard will be felt.
  • the structure of the connecting yarn is important.
  • the connecting yarn connects the front and back knitted fabrics, one continuous connecting yarn is wale between two courses.
  • the braid is knitted so as to have a triangular shape as viewed from the cross section of the knitted fabric in the row direction. Triangular shape means that one continuous connecting yarn forms two sides, and any of the front and back knitted fabrics forms one side, so that it looks like a triangle. More specifically, for example, when knitting with the connecting yarn inclined to the left side with respect to the knitted fabric on the front surface, the connecting yarn on the left side is further directed toward the knitted fabric on the back surface. Indicates that the knitting is inclined.
  • the knitting method in which the connecting yarns have a triangular shape is particularly effective when at least one side of the front and back knitted fabrics is a mesh knitted fabric, thereby improving the shear stress of the mesh knitted fabric. it can.
  • the stitches of the connecting yarns that are the apexes of the triangles are closed, so that the stitches at the apexes are tightened and the structure is stable against shearing.
  • one continuous connecting thread is a combination of a portion forming a triangular shape and a portion inclined obliquely without forming a triangular shape.
  • the ratio of the number of connecting yarns forming the triangular shape and the diagonal shape is more preferably 3: 1 to 1: 3. 2: 1 to 1: 2 is more preferable. If the number of triangles is more than 3: 1, it will be difficult to make the connecting yarn follow the mesh shape and weave it, and the connecting yarn monofilament will be formed on the surface of the mesh fabric. It will be easier to jump out.
  • the portion where the connecting yarn is inclined obliquely means, for example, that when the knitting force of the front surface is knitted with the connecting yarn inclined to the left side with respect to the knitted fabric of the back surface, This indicates that the connecting yarn is knitted on the right side toward the knitted fabric, that is, the connecting yarn does not form a triangle between the two courses!
  • the knitting structure of the knitted fabric on the front and back surfaces is more preferably knitted in the same overlap direction as the direction in which the connecting yarn is hooked on the needle, and the stitches are tightened.
  • the number of courses constituting one mesh is preferably 2 to 6 courses. More preferably 2 to 4 courses. If one mesh exceeds 6 courses, the mesh stitches are easy to move and become unstable, resulting in low shear stress.
  • At least one reinforcing yarn is knitted into the opening of the mesh knitted fabric.
  • a method of knitting the reinforcing yarn a method of knitting so that the yarn forming the mesh crosses the mesh opening, or a method of knitting the insertion yarn into the mesh knitted fabric and crossing the mesh opening can be used.
  • the fiber filling rate of the knitted fabrics on the front and back sides is increased, and multifilament fibers of 350 to 2000 decitex are used as the fibers used in the knitted fabrics on the front and back sides. It is preferable to sufficiently fix the stitches in which the connecting yarns are knitted on the front and back knitted fabrics.
  • a mesh structure with a low fiber filling rate on the front and back sides and a three-dimensional knitted fabric with weak fixing of connecting yarns with front and back fibers have too little shear stress. Conversely, the fineness of the knitted fabric on the front and back sides and the fiber filling rate are low. If it is too high, the ground structure on the front and back will be hard and strong, giving it a solid knitted fabric.
  • the fiber filling ratio of the front and back knitted fabrics represents the ratio of the connecting yarns knitted on the front and back sides of the fibers constituting the front and back knitted fabrics of the three-dimensional knitted fabric in a certain area of the front or back surface.
  • the fiber filling rate of the front and back knitted fabrics is preferably 35-: LOO% for both front and back.
  • the fiber filling rate of the knitted fabric on the front and back sides is based on the enlarged photograph (5 to 20 times) of the front knitted fabric or back knitted fabric in the direction perpendicular to the knitted fabric surface.
  • the force is also photographed to obtain a 10cm square photograph (or a copy of the photograph), and the area ratio of the ground texture (including the connecting yarn) part of the front or back knitted fabric is calculated from the photograph (or copy). It will be done.
  • the solid knitted fabric of the present invention has a stress per unit area when the solid knitted fabric is compressed 3mm from the front side by using a compression plate having a diameter of 30mm in order to further reduce the concentrated load on the seat bone portion when sitting. It is preferable that the ratio (P1ZP2) between P1 and stress P2 per unit area when compressing a solid knitted fabric 3mm from the front side using a compression plate with a diameter of 200mm is 1.0 to 2.0 LV, (measurement The method is the same as in Example (a), except that only the compression plate is changed).
  • a moderately high stress is preferable in compression over a wide area in order to support a person's weight and obtain a stable sitting comfort. It is necessary to easily follow the shape and prevent the pressure from concentrating. For this purpose, it is preferable that the three-dimensional knitted fabric is not stressed too much when compressed in a small area, and 1.0 ⁇ P1 / P2 ⁇ 2.0.
  • the knitted structure of the knitted fabric on the front side of the three-dimensional knitted fabric is set to a knitted structure of two or less needle swings so that the front knitted fabric is flexible. Can be.
  • the front side of the three-dimensional knitted fabric is a mesh knitted fabric in order to reduce the compressive stress in a small area.
  • the number of courses forming the mesh knitted fabric becomes too large, the shear stress decreases as described above, so it is preferable that one mesh is formed with 2 to 6 courses.
  • the three-dimensional knitted fabric of the present invention has a compression recovery curve force of 50% compression (compression to 50% of the original thickness) using a compression plate having a diameter of 100 mm. It is preferable that When the hysteresis loss rate is less than 5%, the vibration damping property is inferior, and when it exceeds 50%, the repeated compression recovery property is inferior.
  • the three-dimensional knitted fabric of the present invention is knitted by a warp knitting machine, a circular knitting machine, a flat knitting machine or the like having two opposing needle beds, and the gauge of the knitting machine is preferably 9 to 14 gauge.
  • the fibers used for the knitted fabric on the front and back of the three-dimensional knitted fabric are polyester fibers such as polyethylene terephthalate fibers, polytrimethylene terephthalate fibers, and polybutylene terephthalate fibers.
  • polyester fibers such as polyethylene terephthalate fibers, polytrimethylene terephthalate fibers, and polybutylene terephthalate fibers.
  • polypropylene fibers, polylactic acid fibers, and the like are preferably used because of their ease of recycling.
  • the fiber used for the knitted fabrics on the front and back sides is mixed with a flame retardant such as phosphoric acid or bromine in order to meet the flame retardant standards required for vehicle seats.
  • a flame retardant such as phosphoric acid or bromine
  • the cross-sectional shape of the fibers is round, triangular, L-shaped, T-shaped, Y-shaped, W-shaped, eight-leaf shaped, flattened, dog-bone shaped, etc., multi-leaf shaped, hollow, irregular It may be anything.
  • the form of the fiber may be any of bulky processed yarns such as raw yarn, spun yarn, twisted yarn, false twisted yarn, air entangled yarn, and fluid jetting yarn.
  • a bulky yarn such as a false yarn of multi-twisted yarn or spun yarn.
  • a monofilament yarn and a multi-yarn are combined into the connecting yarns by knitting, yarn combination, or the like. It is preferable to use multi yarn as a cushioning material.
  • the basis weight of the three-dimensional object of the present invention is an arbitrarily set force, preferably 500 to 2000 gZm 2 , more preferably 600 to 1500 gZm 2 .
  • the raw machine can be finished through processes such as scouring and heat setting.
  • the green machine can be finished through processes such as pre-setting, scouring, dyeing and heat setting. It is preferable that the final heat setting important for controlling the hardness of the three-dimensional knitted fabric is performed while adjusting the angle of the connecting yarns by widening using a pin tenter. In order to improve the flame retardancy, it is preferable to apply a flame retardant.
  • the three-dimensional knitted fabric is disposed on the urethane cushion material of the vehicle seat, and exhibits good vibration damping and stability against left and right shaking. If the three-dimensional knitted fabric is also used as the skin material on the outermost surface of the seat, it has good breathability and is effective in preventing the feeling of stuffiness. More preferably, it is inserted between the skin materials. When inserting between the urethane cushion material and the skin material, insert the three-dimensional knitted fabric by cutting or laser cutting. Is preferred. At this time, by utilizing the air permeability of the three-dimensional knitted fabric, the seat air-conditioning function can be provided by actively circulating air through the three-dimensional knitted fabric.
  • the three-dimensional knitted fabric is arranged on the urethane cushion material, it is preferably used by being bonded and fixed to the urethane cushion material, but may be used without being bonded and fixed.
  • the measuring method of various physical properties of the three-dimensional knitted fabric of the present invention is as follows.
  • a compression plate with a diameter of 100 mm was used to compress a 20 cm square solid knitted fabric placed on a rigid flat surface to a thickness of 50% at a speed of lOmmZmin. Immediately after that, release at the speed of lOmmZmin. From the compression curve of the compression recovery curve shown in Fig. 1 obtained at this time, determine the load (N) at point (A) that results in 2.6 mm compression deformation. The value is the average value obtained by measuring three test pieces.
  • the value is the average value obtained by measuring three test pieces. If the thickness of the three-dimensional knitted fabric is less than 5.2 mm and the compressive load at 2.6 mm compressive deformation cannot be measured by the above method, it will be 2.6 mm compressive deformation until the thickness reaches 50%. Compress to point (A) and measure the compression load and hysteresis loss rate.
  • the horizontal direction of the 5cm square solid knitted fabric (direction along the course row) is the tensile side, as shown in Fig. 2.
  • Example 1 Using a 14-gauge, 6-mm double raschel knitting machine equipped with 6 ridges, a 500dtexl44 filament polyethylene terephthalate fiber false twisting cap from 2 ridges (L1, L2) forming the front knitted fabric Two yarns are drawn together and supplied in a 1-in 1-out (L1) and 1-out 1-in (L2) array, and the two reed (L3, L4) forces forming the connecting part are also 440dtex polytrimethylene terephthalate A monofilament of fiber (manufactured by Solotex Co., Ltd.) is supplied in a 1-in 1-out (L3) and 1-out 1-in (L4) array, and one ridge (L5) that forms the back knitted fabric All of the false twisted yarns of polyethylene terephthalate fibers of 500 dtexl44 filaments are supplied in an all-in arrangement, and another filament (L6) monofilament of polytrimethylene terephthalate fibers of 440 dtex (
  • a three-dimensional knitted fabric knitting machine was knitted in the same manner as in Example 1 except that a monofilament of polybutylene terephthalate fiber having 440 dtex was also used for the two heel (L3, L4) forces forming the connecting portion.
  • the resulting machine is widened by 4%, with an overfeed rate of 1% and 170 ° CX for 2 minutes and 30 seconds. Dry heat setting, 15.5 course Z2. 54cm, 14.2 whale Z2.
  • a solid knitted fabric machine was knitted in the same manner as in Example 1 except that a monofilament of 220 dtex polytrimethylene terephthalate fiber was used from the two ridges (L3, L4) forming the connecting portion.
  • the resulting green machine is 4% wide and heat-set at 170 ° CX for 2 minutes 30 seconds with an overfeed rate of 1%. 15.5 course Z2. 54cm, 14.1 wale Z2. 54cm, thickness 10
  • a three-dimensional knitted fabric was obtained in which a part of the connecting yarn formed a triangular shape with the back side knitted fabric as the base at 3 mm. Table 1 shows the physical properties of the resulting three-dimensional knitted fabric.
  • This three-dimensional knitted fabric has a resonance frequency at a high frequency because the compressive load and shear stress during 2.6 mm compressive deformation are too low, a feeling of bottoming with a high vibration transmissibility, concentrated load on the seatbone, Any of the stability against shaking was poor.
  • a solid knitted fabric machine was knitted in the same manner as in Example 1 except that the two ridges (L3, L4) forming the connecting portion had the following structure.
  • the resulting raw machine is widened by 4% and 170 with an overfeed rate of 1%.
  • CX 2 minutes 30 seconds dry heat setting, 15. 6 course Z2. 54cm, 14.0
  • a three-dimensional knitted fabric with an ale Z2. 54cm, a thickness of 10.3mm, and a simple cross structure of the connecting yarn was obtained.
  • Table 1 shows the physical properties of the resulting three-dimensional knitted fabric.
  • This solid knitted fabric had an appropriate compressive load at 2.6 mm compressive deformation, and the shear stress was too low, so that the connecting thread was easy to fall and the feeling of stability against left and right shaking was poor.
  • the yarn is supplied in an all-in arrangement, and two filaments (L 3) forming a connecting portion are supplied in a 200-dtex polytrimethylene terephthalate monofilament (Solotex Co., Ltd.) in an all-in arrangement.
  • false twisting yarns of polyethylene terephthalate fibers of 167 dtex 48 filaments were supplied in an all-in arrangement from two ridges (L4, L5) forming the knitted fabric on the back side.
  • This solid knitted fabric has the appropriate compressive load and shear stress at the time of 2.6 mm compressive deformation.
  • the thickness is too thin and the bottom tends to bottom out, so the resonance frequency is at a high frequency.
  • the concentrated load was poor.
  • the present invention is a three-dimensional knitted fabric that can prevent concentrated load on the isch bone portion without bottoming when seated, and can obtain excellent vibration absorption and stability against left-right swinging.
  • it is a three-dimensional knitted fabric that can exhibit excellent ride comfort by being inserted between a urethane cushion material and a skin material in a vehicle seat such as an automobile, a railway vehicle, a motorcycle, a wheelchair, and a stroller.
  • FIG. 1 is a diagram for obtaining a compression load at the time of 2.6 mm compression deformation using a compression plate having a diameter of 100 mm.
  • FIG. 2 is a diagram showing a method of measuring horizontal shear stress.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)

Abstract

L'invention concerne un tricot stéréoscopique comprenant deux couches de tissu à tricoter disposées respectivement sur les côtés avant et arrière d'un fil de connexion à un seul filament pour connecter les deux couches de tissu à tricoter, caractérisé en ce que la contrainte de compression à une déformation de compression de 2,6 mm d'une feuille comprimée de 5 à 25 mm d'épaisseur et 100 mm de diamètre de la part du tricot stéréoscopique est dans la fourchette de 100 à 250 N, et que la résistance au cisaillement à une transition latérale (transition le long de l'axe d'alignement) de 5 mm du tissu à tricoter disposé sur les côtés avant et arrière dans une relation parallèle est dans la fourchette de 15 à 35 N.
PCT/JP2007/053191 2006-02-22 2007-02-21 tricot stereoscopique WO2007097363A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07714691A EP1988197A4 (fr) 2006-02-22 2007-02-21 Tricot stereoscopique
JP2008501737A JP4972080B2 (ja) 2006-02-22 2007-02-21 立体編物
US12/280,324 US20100229606A1 (en) 2006-02-22 2007-02-21 Stereoscopic knitwork

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006044987 2006-02-22
JP2006-044987 2006-02-22

Publications (1)

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WO2007097363A1 true WO2007097363A1 (fr) 2007-08-30

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PCT/JP2007/053191 WO2007097363A1 (fr) 2006-02-22 2007-02-21 tricot stereoscopique

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US (1) US20100229606A1 (fr)
EP (1) EP1988197A4 (fr)
JP (1) JP4972080B2 (fr)
KR (1) KR20080085081A (fr)
CN (1) CN101384762A (fr)
TW (1) TW200745398A (fr)
WO (1) WO2007097363A1 (fr)

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WO2018235738A1 (fr) * 2017-06-22 2018-12-27 セーレン株式会社 Tricot raschel à doubles mailles
CN109552123A (zh) * 2017-09-26 2019-04-02 李尔公司 乘坐系统及其生产方法

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KR101032444B1 (ko) * 2008-09-26 2011-05-03 코오롱글로텍주식회사 중간사의 표면노출이 없는 더블 라셀 메쉬의 제조방법 및 그 더블 라셀 메쉬
CN103205859B (zh) * 2012-01-16 2014-08-06 杜邦公司 包括聚对苯二甲酸丙二酯的经编织物
US9937085B2 (en) 2012-12-28 2018-04-10 Sca Hygiene Products Ab Absorbent article having fluid flow control member
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WO2014154300A1 (fr) * 2013-03-28 2014-10-02 Carl Meiser Gmbh & Co. Kg Matériau de surface pour le revêtement d'espaces intérieurs
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JPWO2007097363A1 (ja) 2009-07-16
US20100229606A1 (en) 2010-09-16
TW200745398A (en) 2007-12-16
EP1988197A4 (fr) 2010-09-29
EP1988197A1 (fr) 2008-11-05
CN101384762A (zh) 2009-03-11
JP4972080B2 (ja) 2012-07-11

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